Awesome. This is an interesting post.
You know what? I've also heard about the one about tattoo and blood donation. I don't remember where or when I heard it, but I also heard that once you have a tattoo, you won't be eligible to donate blood to anyone. Wow!
I'm not interested in any form of tattoo so I haven't been able to do my research. However, reading your post gives me more insight about it. I would have to do more research to know more about the whole thing.
The one about people that use surgery to rearrange their physical appearance is pure madness. Lol. I don't understand how a completely normal person would choose to do something like that.